Moisture-proof joint.



W. I. AIMS.

MOISTURE PROOF JOINT. APPLICATION FILED JUNE 15, 1906.

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PATENTED DEC. 4, 1906.

mwavrofi PATENT OFFICE.

WALTON I. AIMS, or NEW YORK, N. Y..

MOlSTURE-PROQF JOINT.

Specification of Letters Patent.

. Patented Dee.4, 1906- Application filed June 15, 1906. Serial No. 321,855.

To all whom it may concern! Be it known that I, WALTON I. AIMS, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Im roved Moisture- Proof Joint, of which the ollowing is a full, clear, and exact description.

The invention relates to tunnels and like structures requiring, moisture-proof joints at the sections; and its object is to provide a new and improved joint arranged to render the abutting flanges of .the sections moistureproof at the bolts connecting the flanges with each other.

The invention consists of novel features and parts and combinations of the same,

as' shown in Fig.

which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a cross-section of part of a sectional tunnel-shell provided with the imrovement. Fig. 2 is an enlarged sectional elevation of the 1m rovement, and Fig. 3 is a like view of a modi ed form of the same.

In tunnels, especially such as are constructed through the bed of rivers and other water-ways,it is very essential that the tunnelwall is rendered completely water and moisture proof. Tunnels such as referred to consist usually of a sectional metallic shell A, such other material, and it is essentialthat the sections ofthe shell are rendered water and moisture proof at all joints, bolt-holes, &c. The joint between the abutting flanges A A of adjacent shell-sections is rendered water and moisture proof by calking the joint, preferably with lead B and cement C, as

lainly indicatedin Figs. 2 and 3. The boltliole A formed in the abutting flanges A A is necessarily somewhat larger than the bolt 1) engaging the bolt-hole and used for fastening the flanges A and A securely together. ow in order to render the joint'water and moisture proof at the bolt-hole A is the object of the present invention. For the ur pose mentioned the space between the b0 t D and the wall of the bolt-hole A is filled with waterproof or moisture-proof material E- such as grout, waterproofing-cement, iron cemcnt, asphalt, coal-tar, and the like. In order 1, and a wall of brick or tointroduce the material E while in a plastic state into the space referred to and after the bolt is in lace and the flanges A to ether y the bolt, I prefer to form a channel D in the bolt D, the channel leading from then pass to the peripheral surface of the bolt-that is, open into the space between the bolt and the wall of the bolt-hole A The outer end of this channel D is engaged by the discharge end F of a pump F or a like device for forcing the material E through the channel D into the space between the-bolt D and the bolt-hole A'. As shown in Fig. 3, a channel A may be formed in one of the flanges A or A and extending from the outside thereof to the bolt-hole, and in this case the discharge end F of the pump F is connected with the outer end of the channel A, and then the material is forced by the pump F through the channel A into the space between the bolt D and the bolt-hole A In either case the material E is forced under pressure into the s ace between the bolt and the wall of the b0 t-hole A, so that the said space is com lctcly and com actly filled to render the b0 ter and moisture proof.

It is understood that the plastic material forcedaround the bolt in the bolt-hole soon sets and hardens, and thereby prevents all leakage of water or moisture that may pass to the bolt-hole by way of the joint between the flanges from the outside of the metallic shell. The usual felt washers G or metallic washers G are employed on each bolt D at the head and nut thereof, as plainly indicated in Figs. 2 and 3.

By the simple means shown and described the numerous bolt-holes in a tunnel-shell and like structure can be very quickly and economically rendered water and moisture proof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A moisture proof joint, comprising abutting flanges, a bolt for fastening the flanges together,.and a waterproof material surrounding the bolt in the bolt-hole of the flanges and throughout the length of" the bolt-hole.

2. A moisture-proof joint for flanges bolted together, rovided with a waterproof plastic material filling the space between the bolt l and the wall of the bolt-hole in the flanges.

one outer end of the bolt centrally inward, to

t-hole complete y wa- A fastened 3. A moisture-proof joint for flanges bolted together, royided with a waterproof plastic material filling the s ace between the bolt and the wall of the b0 t-hole in the flanges, and means for forcing the material into the said space.

4. A moisture-proof joint for flanges bolt ed together, rovided with a Waterproof plastic material ling the s ace between the bolt and the wall of the b0 t-hole in the flanges, Q

same? name to this specification i two subscribing wltnesses.

WALTON I. AIMS.

Witnesses:

THEO. G; HOSTERM EVERARD ,B. MA-RsHAL n the presence of 

